HOUSTON, Dr. Stuart. Summary of 13th Annual Saskatchewan Christmas Bird Count, 1954. Blue Jay, [S. l.], v. 13, n. 1, 1955. DOI: 10.29173/bluejay2097. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/2097. Acesso em: 5 may. 2024.